I have a rather simple setup that I will be deploying out to several end users to function as a VPN endpoint for our phone system. I have not configured any DHCP options in the Mikrotik router (other than a basic pool), but it is handing out its address to the IP Phones as a TFTP server address. I would not object to programming the Mikrotik to hand out a valid TFTP server address, but in my searching and reading, it seems that's a task much easier said than done, so in lieu of having it hand out a valid TFTP server address, I'd settle for having it not hand out any TFTP address at all. Does anyone have any ideas why the ROS is handing out its LAN address as a TFTP server when no option is set, and how to stop it from doing so?

Well, after a few more hours of searching and digging through posts, I got this sorted out to where I have the MikroTik handing out MCIPADD, MCPort and TFTPSRVR to the IP Phones. They use option code 176 for these settings.

It WOULD still be nice if someone could tell me why the MikroTik was handing its own address out to the phone as a TFTP Server when the option wasn't configured at the time though....

Enable debug logging for dhcp. It will show in the log what the dhcp server is sending. Is yours sending code 150? Mine doesn't.

Could it be "Next server" you searching for???

http://forum.mikrotik.com/viewtopic.php ... 97#p364684

Could it be "Next server" you searching for???

http://forum.mikrotik.com/viewtopic.php ... 97#p364684

Pretty sure no - that doesn't appear anywhere in the config.